These are the average ACT scores for the Class of 2012 for DFW area public and charter high schools. The highest possible score is a 36. Some schools are not on the list because they do not have enough students taking the ACT. In several instances, there is a 2011 score, but not a 2012 score. The 2011 is used and it is noted if the score is from 2011.
Source: Texas Education Agency
There is a newer list of ACT scores here:
http://dallas-area-schools.blogspot.com/2015/11/2014-2015-dallas-ft-worth-area-high.html
ACT Score - School (District)
28.8 - Talented/Gifted magnet (Dallas)
26.8 - Science/Engineering magnet (Dallas)
26.6 - Highland Park (Highland Park)
26.1 - Southlake Carroll (Carroll)
26.1 - Plano West (Plano)
26.1 - North Hills (charter)
26.1 - Westlake (charter)
25.6 - Plano Senior (Plano)
25.4 - Treetops International (charter) 2011 score
25.1 - Flower Mound (Lewisville)
25.1 - Coppell (Coppell)
25.0 - New Tech (Coppell)
25.0 - Plano East (Plano)
24.7 - Marcus (Lewisville)
24.5 - Grapevine (Grapevine-Colleyville)
24.4 - Liberty (Frisco)
24.3 - Lovejoy (Lovejoy)
24.2 - Colleyville-Heritage (Grapevine-Colleyville)
24.1 - JJ Pearce (Richardson)
24.1 - Allen (Allen)
24.0 - Steele Accelerated (Northwest)
24.0 - Hebron (Lewisville)
24.0 - Frisco (Frisco)
24.0 - Centennial (Frisco)
24.0 - Boyd (McKinney)
24.0 - Keller (Keller)
23.9 - McKinney (McKinney)
23.6 - Argyle (Argyle)
23.5 - Paschal (FW)
23.5 - Byron Nelson (Northwest)
23.5 - Rockwall (Rockwall)
23.4 - Prosper (Prosper)
23.2 - Wakeland (Frisco)
23.2 - Richland Collegiate (charter)
23.1 - Rockwall-Heath (Rockwall)
23.1 - Newman Smith (Carrollton-Farmers Branch)
23.1 - Richland (Birdville)
23.0 - Garland (Garland)
22.8 - Celina (Celina)
22.8 - Martin (Arlington)
22.8 - Wylie (Wylie)
22.8 - Pottsboro (Pottsboro)
22.7 - Heritage (Frisco)
22.6 - Melissa (Melissa)
22.6 - Booker T. Arts magnet (Dallas)
22.6 - Central (Keller)
22.5 - North (McKinney)
22.5 - Collegiate (Cedar Hill)
22.5 - Gunter (Gunter)
22.4 - Arlington (Arlington)
22.4 - Creekview (Carrollton-Farmers Branch)
22.3 - Rangel girls school (Dallas)
22.3 - FW Academy of Fine Arts (charter)
22.3 - Birdville (Birdville)
22.2 - Global (Waxahachie)
22.2 - LD Bell (HEB)
22.2 - Northwest (Northwest)
22.1 - Richardson (Richardson)
22.0 - Rowlett (Garland)
22.0 - Midlothian (Midlothian)
22.0 - Lake Dallas (Lake Dallas)
21.9 - Lake Highlands (Richardson)
21.9 - Legacy (Mansfield)
21.8 - Sachse (Garland)
21.8 - Lamar (Arlington)
21.8 - Mansfield (Mansfield)
21.7 - Fossil Ridge (Keller)
21.7 - Lone Star (Frisco)
21.7 - Denison (Denison)
21.6 - Sherman (Sherman)
21.6 - Aubrey (Aubrey)
21.5 - Ranchview (Carrollton-Farmers Branch)
21.5 - Guyer (Denton)
21.5 - Trinity (HEB)
21.4 - Wylie East (Wylie)
21.4 - Law magnet (Dallas)
21.4 - The Colony (Lewisville)
21.3 - Berkner (Richardson)
21.3 - Health magnet (Dallas)
21.2 - Sunnyvale (Sunnyvale)
21.1 - Princeton (Princeton)
21.1 - Crandall (Crandall)
21.1 - Singley (Irving)
21.1 - Forney (Forney)
21.0 - Summit (Mansfield)
21.0 - Royse City (Royse City)
20.8 - Anna (Anna)
20.8 - Arlington Heights (FW)
20.7 - Naaman Forest (Garland)
20.6 - Horn (Mesquite)
20.5 - STATE AVERAGE
20.5 - Business magnet (Dallas)
20.4 - Red Oak (Red Oak)
20.4 - Lewisville (Lewisville)
20.3 - Ryan (Denton)
20.3 - Greenville (Greenville)
20.2 - Waxahachie (Waxahachie)
20.1 - Middle College (Dallas)
20.1 - Pegasus (charter)
20.0 - RL Turner (Carrollton-Farmers Branch)
19.9 - Hillcrest (Dallas)
19.9 - North Garland (Garland)
19.7 - Denton (Denton)
19.7 - South Grand Prairie (Grand Prairie)
19.7 - Poteet (Mesquite)
19.6 - Dubiski Career (Grand Prairie)
19.5 - Terrell (Terrell)
19.5 - Haltom (Birdville)
19.3 - Timberview (Mansfield)
19.2 - Southwest (FW)
19.2 - Little Elm (Little Elm)
19.1 - Ennis (Ennis)
19.0 - Duncanville (Duncanville)
19.0 - Woodrow Wilson (Dallas)
18.9 - Seguin (Arlington)
18.9 - Nimitz (Irving)
18.9 - North Mesquite (Mesquite)
18.8 - Lakeview Centennial (Garland)
18.8 - Mesquite (Mesquite)
18.7 - Ford (Quinlan)
18.6 - Bowie (Arlington)
18.6 - Western Hills (FW)
18.5 - Macarthur (Irving)
18.5 - Early College (Carrollton-FB) 2011 score
18.3 - Irving (Irving)
18.2 - Trimble Tech (FW)
18.1 - Skyline (Dallas)
18.1 - Grand Prairie (Grand Prairie)
18.1 - WT White (Dallas)
18.1 - North Forney (Forney)
18.0 - Desoto (Desoto)
17.9 - Gilliam (Dallas)
17.9 - South Garland (Garland)
17.9 - Cedar Hill (Cedar Hill)
17.7 - Sam Houston (Arlington)
17.5 - West Mesquite (Mesquite)
17.4 - Uplift Williams Prep (charter)
17.1 - Bryan Adams (Dallas)
17.1 - Seagoville (Dallas)
17.0 - Uplift Peak Prep (charter)
16.9 - Thomas Jefferson (Dallas)
16.9 - North Side (FW)
16.9 - Universal Academy (charter)
16.8 - Carter-Riverside (FW)
16.6 - Can Academy - Carrollton FB (charter) 2011 score
16.5 - Sunset (Dallas)
16.4 - Molina (Dallas)
16.2 - Eastern Hills (FW)
16.1 - Diamond Hill-Jarvis (FW)
16.1 - Polytechnic (FW)
16.1 - Uplift Hampton Prep (charter)
16.1 - Lancaster (Lancaster)
16.0 - South Hills (FW)
16.0 - Conrad (Dallas)
15.8 - North Dallas (Dallas)
15.8 - Samuell (Dallas)
15.8 - OD Wyatt (FW)
15.7 - Madison (Dallas)
15.6 - Dunbar (FW)
15.5 - Kimball (Dallas)
15.3 - Adamson (Dallas)
15.2 - Lincoln (Dallas)
14.9 - Spruce (Dallas)
14.9 - Pinkston (Dallas)
14.7 - Carter (Dallas)
14.7 - Wilmer Hutchins (Dallas)
14.6 - FW Can Academy (charter)
14.5 - A. Maceo Smith (Dallas) 2011 score
14.5 - Roosevelt (Dallas)
14.3 - Dallas Can Academy (charter)
14.0 - Can Academy - Oak Cliff (charter)
13.8 - South Oak Cliff (Dallas)
13.3 - Can Academy - Pleasant Grove (charter)